Every published English tool, organized by the task.

Encode text, inspect possible literal readings, and fit an ASCII nickname to your chosen length limit.

Choose an opaque sRGB color and build complementary, analogous, or triadic harmonies with canonical HEX, RGB, and HSL values.

Generate 1–8 unique opaque sRGB colors with browser Web Crypto, then lock, reroll, and copy canonical HEX, RGB, or rounded HSL values.

Generate 1–20 unique US English words, filter by part of speech, length, or starting and ending letters, then save and copy useful results.

Look up all 128 standard ASCII codes in decimal, hexadecimal, octal, and an 8-bit byte view, then filter or copy safe table rows.

Find five-letter US English words by starting, included, ending, excluded, and position letters with private browser-only filtering.

Look up and copy USPS two-letter abbreviations for all 50 states and the separately labeled District of Columbia.

Pick a month to see its birthstones and colors on the current US list, when each stone was added, and what older charts show.

Generate a static QR code from exact text or a strict HTTP(S) URL, then copy or download black-and-white PNG and SVG output locally.

Make a WiFi QR code guests scan to join, check that it scans, and print a 4 × 6 inch Wi-Fi card on US Letter paper.

Turn your contact details into a vCard QR code for a business card, check that it scans, and download PNG, SVG or a .vcf file.

Read every QR code in a screenshot, photo, or image file by pasting, dropping, or choosing it, and check each link before opening. Images stay on your device.

Generate one secure random-character password locally with guaranteed classes, custom exclusions, exact entropy details, and optional auto-clear.

Compare two pasted text values with an exact line-level diff, visible blank records, fixed limits, and no uploads or saved text.

Sort one item per line in a predictable A–Z or Z–A natural order while preserving the original text and keeping it in this browser tab.

Count words, characters with and without spaces, sentences and reading time as you type, check X and other post limits, and keep the text in your browser.

Decode UTF-8 URL percent-encoding in one strict browser-local pass with an explicit choice for raw plus signs.

Generate Discord timestamp markup from local time, strict Unix seconds, or ISO time with an explicit offset, including all current styles and DST checks.

Format a Discord message with bold, italic, spoilers, headings, lists, code or colored text, keep symbols as typed, and copy it.

Convert unsigned 8421 BCD digit groups both ways, with a digit chart, decimal-point position, and integer binary comparison.

Look up A–Z number pairs, convert A1Z26 messages both ways, and see possible splits of continuous digits.

Convert keyboard text to the Unicode symbols documented for original Wingdings positions, or decode exact symbols back, with each source ID and code point.

Translate text to Morse or decode messy pasted Morse, then copy, play, pause, share, or download the result as WAV audio.

Translate text and binary with strict UTF-8 error positions, a byte-by-byte inspector, exact round-trip checks, and separate batch records.

Convert exact binary and decimal integers, compare unsigned and two's-complement values, and preview zero extension, sign extension, or lossy truncation.

Decode Standard Base64 or Base64URL into exact bytes and UTF-8 text, or encode UTF-8 text with canonical padding rules in your browser.

Format, minify, validate, and inspect strict JSON without changing number tokens, string escapes, member order, or duplicate members.

Convert strict RGB channels to six-digit HEX, or convert 3- or 6-digit HEX back to RGB with paste-friendly input and a local color preview.

Use the complete A–Z chart, convert English letters to official NATO code words, or decode them back to text.

Copy uppercase Ω or lowercase ω, get exact HTML and LaTeX codes, and distinguish the legacy Ohm sign.

Copy π, Π, ∏, or ϖ with exact Unicode, HTML and LaTeX codes, then calculate circle circumference and area from a radius.

Search and copy 75 music notes, clefs, rests, accidentals, dynamics, repeat signs, music emoji and playback symbols, or combine them into one line.

Search and copy outline, filled, decorative, and colored heart symbols for bios, messages, usernames, and posts.

Type your name once and see it in hundreds of frames, from wings and crowns to sweaty gamer tags. Tap to copy.

Bows, kaomoji, cute emoji, flowers, animals and dividers in one cute symbol library. Tap to copy, or collect several into your own line.

Search and copy 1,171 Japanese text faces by mood, including cute, happy, sad, angry, love, cat, hug, and table-flip kaomoji.

Turn text into 48 curated cute Unicode styles with bubble letters, scripts, hearts, bows, sparkles, and one-click copy.

Turn text into 10 copyable regular, bold, and decorated Unicode Fraktur results with explicit number and compatibility notes.

Turn English letters into 104 copyable fancy font-style Unicode results, with filters, favorites, and compatibility notes.

Style a Discord display name, nickname, About Me, or custom status in Unicode fonts and see which ones fit Discord's length limit.

Copy √, ∛, or ∜, then build square, cube, fourth, or nth-root expressions as plain text, LaTeX, or HTML.

Copy the degree sign, temperature forms, coordinates, and code formats, with keyboard shortcuts for every common device.

Copy male, female, intersex and transgender symbols, relationship and planet symbols, and restroom signs.

Copy solid and outline squares, triangles, diamonds, circles, shape emoji and squared ² area units.

Copy all 24 Greek letters in capital and lowercase, with English pronunciation, LaTeX commands and a letter-string builder.

Copy check marks and ticks, X marks and checkboxes, with Word, Windows, Mac and HTML shortcuts.

Copy the red X ❌, heavy ✖️, text ✗ ✘, boxed ☒, circled, and letter X marks, sorted into groups and searchable.

Copy 120 text and emoji arrows by direction, style or use, with Alt codes, Unicode and HTML codes and keyboard tips.

Copy 76 math symbols for operations, inequalities, sets, logic, calculus and geometry, with names, Unicode and LaTeX codes.

Copy the 12 zodiac signs with their dates, plus astrology planet and aspect symbols.

Copy labeled blank and invisible characters, including the Hangul filler, Braille blank, zero-width space and no-break space.

Copy solid and outline stars, sparkles, decorative stars, star emoji and ready-made star rating rows.

Copy laughing emoji by intensity and context, compare 😂 with 🤣, 😆, and 😅, or paste complete laugh reactions and codes.

Copy crying emoji by feeling and intensity, compare 😭, 😢, 🥲, and 🥹, or paste complete emotional reactions and text faces.

Copy every thumbs up skin tone, compare friendly and sarcastic meanings, or paste complete approval replies and codes.

Choose and copy side eye emoji by meaning, from watching and skepticism to annoyance, playful reactions, meme replies, and text faces.

Search and copy 120+ emoji combos by meaning, mood, color, season, or occasion, or collect emoji to build a custom combination.

Generate reproducible Lorem Ipsum by exact paragraphs, sentences, words, or characters, then copy plain text or inert HTML source.

Copy ≥ or ≤ and build at-least, at-most, or between expressions as text, LaTeX, or HTML.

Copy 🤓, browse study and gaming combos, or build a text reaction with standard emoji.

Search and copy 43 Unicode hand emoji, reveal skin tones on demand, and inspect exact Unicode, HTML, or JavaScript codes.

Copy and compare six smile emoji, preview one in a short message, and get exact Unicode, HTML, or JavaScript codes.

Copy Δ or δ, distinguish increment ∆ from partial ∂, and build a signed-change expression.

Copy ± or ∓ and build a tolerance expression with lower and upper limits, LaTeX, and HTML.

Copy ×, compare it with x, *, ·, ✕ and ⨯, get code formats, or build a multiplication expression.

Copy 👁️ Eye, 👀 Eyes, or the Eye in Speech Bubble ZWJ sequence and compare their exact Unicode formats.

Create a UPC-A barcode from your own 11- or 12-digit number, calculate or validate its check digit, then download SVG or PNG.

Generate Code 128, EAN-13, or UPC-A barcodes, validate up to 30 rows, export one SVG or PNG, and print a 30-up US Letter label layout.

Generate reproducible US name fixtures with no duplicate full names per batch, reserved test emails, CSV/JSON/TSV export, and a UI stress pack.

Create reproducible username ideas with exact length, required and excluded text, platform format profiles, and a local session shortlist.

Encode or decode a Scytale cipher with an adjustable column key, a visual wrap grid, and exact character-position mapping.

Encode or decode Vigenere text with a repeating keyword, preserved punctuation, and letter-by-letter steps tied to every result character.

Copy special characters and text symbols with one tap, with English names, keyboard shortcuts and characters most password rules accept.

Copy $ ¢ € £ ¥ and currency symbols from around the world, with Alt codes, Mac shortcuts and how to write US dollar amounts.

Copy circled numbers ① to ㊿, superscript and subscript numbers, fractions, Roman numerals, № and number emoji.

Copy weather symbols and emoji like ☀ ☁ ☂ ❄ ⚡ and °F, with their names and a chart of common forecast meanings.

Copy horizontal ─ ━ ═ and vertical | │ ┃ lines, dashed and box-drawing characters, and ready-made text dividers.

Copy Christmas emojis and symbols like 🎄 🎅 🎁 ⭐ ❄ with their names, plus one-color text symbols and Merry Christmas text.

Copy the infinity symbol ∞, the emoji ♾️, and heart and math versions, and see how to type ∞ on Windows, Mac and iPhone.

Calculate an IPv4 CIDR network, mask, block range and carefully qualified /31 endpoints locally.

Format or minify XML in your browser, with clear whitespace rules, local files and useful errors.

Decode a compact JWT locally, inspect header and claims with UTC/local times, and see clearly that no signature verification ran.

Convert Gregorian and Thai Buddhist Era year numbers with exact +543 arithmetic, Thai digits, era-safe boundaries, and a private 25-row batch.

Convert grams and cups using 12 USDA ingredient reference portions or a custom grams-per-cup value.

Convert one military or AM/PM time, or rewrite a labeled schedule while preserving its structure and marking next-day midnight.

Convert tbsp and tsp with exact fractions, halve or double recipe amounts, and choose US or Australian measuring spoons.

Compare a named US and international ring-size reference, repeat measurements, or cross-check two at-home methods without forcing conflicting readings into one size.

Convert adult head circumference in centimeters or inches to the nearest US fitted, UK, and EU reference, while keeping size boundaries and brand differences visible.

1 US liquid quart equals 4 US cups. Convert either way with fractions and clearly labeled results.

Convert ounces and pounds, paste mixed weights such as 2 lb 4 oz, and copy decimal or pounds-plus-ounces results.

Paste grams, decimal pounds, ounces, or lb + oz, then copy one result or convert up to 100 mixed-unit lines.

Convert grams to kg, paste kg + g together, or process up to 100 mixed-unit lines with spreadsheet-safe CSV.

Convert milliliters and fluid ounces with clearly labeled US or UK standards, unit-aware paste, Swap and Copy.

Convert centimeters to decimal inches or feet and inches, choose precision, and check common height and size values.

Convert millimeters to decimal and fractional inches, including the nearest 1/16, 1/32, or 1/64 inch.

Convert decimal or fractional inches to millimeters, reverse mm to inches, and compare the same length in cm and meters.

Convert meters to decimal feet or feet and inches for rooms, building dimensions, distances, and heights.

Convert meters to miles or miles to meters, paste values with units, and compare track laps and common race distances.

Convert US cups to liquid gallons or gallons back to cups, paste values with units, and check common container amounts.

Convert kilometers to meters or meters back to kilometers, paste values with units, and check metric steps and powers of ten.

Convert US fluid ounces to tablespoons or back, paste values with units, and avoid mixing liquid volume with weight ounces.

Convert liters to US liquid quarts or back, paste values with units, and compare US liquid, dry, and imperial quart sizes.

Convert centimeters to decimal feet and feet plus inches instantly, with adjustable precision and a common-height chart.

Convert grams to everyday ounces in either direction, including decimal and fraction inputs, copyable results, and clear ounce-type guidance.

Convert millimeters and centimeters in either direction with the exact metric relationship and adjustable decimals.

See how many liters are in a US liquid gallon, then convert gallons and liters in either direction.

Convert milliliters and liters instantly in either direction, then copy the result or check common bottle-size values.

Convert inches and decimal feet in either direction, with a readable feet-and-inches result for every value.

Convert acres and square feet in either direction using the exact 43,560-square-foot acre.

Convert hectares and acres in either direction, then compare the same land area in m², km², sq ft, and sq mi.

Convert feet to miles, see whole miles plus remaining feet, or paste and total up to 100 mixed feet and mile distances.

Convert feet to yards or yards to feet, paste mixed feet-and-inches measurements, and see a breakdown in yards, feet, and inches.

Convert inch fractions, feet plus inches, or multi-part dimensions to calculated meters, centimeters, millimeters, and practical rounded sizes.

Convert meters and yards, paste multiple dimensions, and see decimal yards with a whole-yard, feet, and inches remainder.

Convert millimeters and meters in either direction, paste up to three dimensions, and check every value across the mm, cm, m, and km scale.

Get the 128-US-fluid-ounce answer, convert US or Imperial volume, total mixed units, and allocate a target across different containers.

Convert gallons and quarts in either direction, paste fractions, switch between US liquid and Imperial systems, and see the full volume chain.

Convert cups and pints in either direction, paste fractions, compare three recipe cup sizes, and see the full US liquid volume chain.

Convert US liquid pints to gallons and gallons to pints with exact fractions and decimals. Use 8 pints per gallon, paste units, swap, and copy the result.

Convert pixel width and height to inches and centimeters at any PPI. Compare 72, 96, 150 and 300 PPI print sizes side by side.

Convert knots to mph and km/h, then calculate nautical miles, statute miles, or travel time from the same speed.

Convert mph to m/s or m/s to mph with the exact 0.44704 factor, optional significant figures, and km/h and ft/s reference values.

Convert KB to MB and compare decimal SI with binary IEC values across bytes, KB, MB, GB, KiB, MiB, and GiB.

Convert minutes to decimal hours and hours plus minutes, or paste up to 100 minute values to total several durations.

Convert Nm to ft lbs or ft lbs to Nm, then compare the exact result with the nearest torque-wrench increment.

Convert steps to miles, feet, and kilometers using a step length, or calibrate the estimate from up to three measured walks.

Convert mcg, mg, g, and kg exactly, or paste up to 100 standalone masses for row-by-row conversion and a total.

Convert Pacific and Eastern times for a selected date with actual PST/PDT and EST/EDT labels, warnings, and batch input.

Convert Central and Eastern times for a selected date with actual CST/CDT and EST/EDT labels, warnings, and batch input.

Convert Pacific and Central times for a selected date with actual PST/PDT and CST/CDT labels, warnings, and batch input.

Convert UTC to EST or EDT for a selected date, with exact abbreviations, calendar rollover, warnings, and up to 50 pasted times.

Convert Mountain and Eastern time by date, choosing Denver MST/MDT or Arizona's fixed MST, with warnings and batch input.

Convert tablespoons and cups with exact fractions, paste full recipe lines, preserve ingredient names, and choose US, metric, or Australian measures.

Convert fluid ounces and quarts as exact fractions, paste recipe lines, and keep US liquid and Imperial units clearly separated.

Convert liters to US or Imperial fluid ounces, then plan 8–64 oz bottles and glasses with exact whole-container differences.

See Hawaii time now, compare mainland U.S. offsets by season, and convert a dated 9 AM–6 PM HST business window to your time zone.

See Phoenix time now, understand Arizona's fixed MST rule, compare mainland offsets by season, and convert a dated 9 AM–6 PM workday.

See Nepal time now with seconds, understand the UTC+5:45 offset, compare your time zone, and convert a dated 9 AM–6 PM daytime window.

See the current time in South Korea with seconds, understand KST at UTC+9, compare your time zone, and convert a dated 9 AM–6 PM call window.

See Kenya time now beside your selected time zone, check the exact date-aware difference, and find shared 9 AM–6 PM hours for calls.

See Nigeria time now beside your selected time zone, check the date-aware difference, and find shared 9 AM–6 PM hours for calls.

See Chicago time now, check CST or CDT for any date, compare your time zone, and find shared 9 AM–6 PM hours for calls.

See Atlanta time now, compare a selected date with your time zone, and find shared 9 AM–6 PM hours for calls.

See Dubai time now beside your selected zone, check the date-aware difference, and find shared 9 AM–6 PM hours for calls.

See Pakistan time now beside your selected zone, check the date-aware difference, and find shared 9 AM–6 PM hours for calls.

See Colorado time now with MST or MDT, compare a selected date with your zone, and find shared 9 AM–6 PM hours for calls.

See the time in mainland Spain and the Canary Islands now, compare a Madrid date with your zone, and find shared hours for calls.

See fixed EDT at UTC−4 beside New York's actual EST or EDT, then convert a selected date and time to your own zone.

Compare fixed CST at UTC−6 with Chicago's actual CST or CDT, choose the North American, China, or Cuba meaning, and convert one dated time.

See India Standard Time now, compare it with your zone, and resolve whether a dated IST label means India, Ireland, or Israel.

See fixed MST at UTC−7, compare Denver's date-aware MST or MDT with Phoenix, and convert one time without mixing the rules.

See Sydney, Brisbane, Adelaide, and Perth now, then convert one dated time across all four rules without losing half-hour offsets.

See Berlin's CET or CEST clock, compare Germany with your zone or four U.S. zones, and convert dated times without guessing daylight-saving gaps or overlaps.

Compare Washington, DC and Washington State time side by side, then convert a dated Eastern or Pacific daytime window to your zone.

See Nashville time now, compare Central and Eastern Tennessee, and convert a dated Nashville or Knoxville daytime window to your zone.

Convert K, °C, and °F together, distinguish actual temperatures from temperature differences, or copy a mixed-unit batch table.

Convert mL and cups across US customary, nutrition-label, metric, and Imperial standards, or paste a labeled recipe list.

Convert pints to quarts or quarts to pints with decimals and fractions. Uses US liquid volume and clearly separates dry and Imperial measures.

Convert sq ft to m2 or m2 to sq ft, recognize unit-labeled pasted values, swap direction, and copy the displayed result.

Convert feet to mm and millimeters to feet using the exact 304.8 mm-per-foot factor. Paste ft or mm, swap direction, copy results, and check common values.

Convert cubic feet to US liquid gallons and gallons back to cubic feet. Paste ft³, cu ft, or US gal, swap direction, copy results, and check common values.

Convert cubic feet to cubic yards and back with the exact 27:1 factor. Paste ft³ or yd³, swap direction, copy results, and check common values.

Convert US fluid ounces to teaspoons and back. Enter fl oz or tsp, swap directions, and copy the result.

Convert liters to US customary cups or cups to liters. Choose US customary or metric cups, paste values with units, swap directions, and copy results.

Convert milliliters to US liquid or Imperial gallons and back. Choose the gallon system, paste a labeled value, swap directions, and copy the result.

Estimate pounds from US liquid gallons, or gallons from pounds, using water at 70°F or a custom density with the assumption shown beside the result.

Convert stones to pounds or pounds to stones using exactly 14 lb per stone. Enter mixed weights like 11 st 4 lb and see kilograms too.

Convert kilowatts to mechanical, metric, or electric horsepower and back with explicit factors, pasted units, swap, and copy.

Convert centimeters to kilometers or kilometers to centimeters with the exact 1 km = 100,000 cm relationship. Paste cm or km, swap, and copy.

Convert teaspoons to cups and cups to teaspoons with exact fractions. Use 48 US tsp per cup or 50 metric teaspoons per 250 mL cup.

Calculate current from watts and voltage for DC, single-phase AC, and balanced three-phase AC, with power factor and a bounded circuit-load comparison.

Convert centimeters and meters, recognize pasted units, or copy a batch of up to 100 measurements.

Convert Fahrenheit to Celsius or Celsius to Fahrenheit, handle temperature differences correctly, and copy batches.

Convert kg to lbs instantly. Paste kilograms, choose decimal precision, copy with units, or swap to check the reverse conversion.

Convert km to miles or miles to km instantly. Paste a distance with units, copy the result, and check 5K, 10K, half-marathon and marathon distances.

1 US customary cup = 8 US fluid ounces. Convert cups and fl oz in either direction, enter fractions, and avoid confusing fluid ounces with weight ounces.

Convert kph to mph or mph to kph instantly. Paste km/h or mph, swap direction without losing precision, and copy the result with units.

Convert newtons to pound-force or lbf to N instantly. Paste a force with units, swap direction without losing precision, and copy the result.

Convert lbs to kg with the exact international pound factor. Paste pounds, choose decimal precision, copy with units, or swap to convert kg back to lb.

Convert yards and miles in either direction, see whole-mile remainder and metric equivalents, or compare 400 m and 440 yd track laps.

Convert mL to grams or grams to mL with ingredient presets, custom density, and package-label calibration.

Convert mcg to mg or mg to mcg exactly, accept three microgram symbols, copy all metric mass units, or total up to 100 label values.

Create a private invoice with multiple line items, explicit tax, discount, and shipping math, then print or save the browser preview as PDF.

Calculate CET1, Tier 1 and total capital ratios together from reported figures, with formulas and an optional user-set target gap. No compliance verdict.

Estimate an auto loan payment with explicit tax-basis, trade-equity, upfront-versus-financed fee, and amortization assumptions.

Estimate a fixed personal loan payment, net proceeds, interest, upfront-fee impact, total borrowing cost, APR, and monthly schedule.

Compare a gross-income housing benchmark with a take-home budget after debt, utilities, essentials, and savings.

Estimate a 2026 traditional IRA RMD from each December 31, 2025 balance and the IRS Table III factor, with a total across up to ten IRAs.

Project a 401(k) with 2026 IRS limits, two employer-match tiers, match left on the table, and a vesting-aware leaving-job estimate.

Estimate trip fuel, total cost, cost per mile or kilometer, and the average per traveler using US MPG or metric L/100 km inputs.

Estimate mulch volume for one rectangular or round bed in US or metric units, with an optional whole-bag count from your bag label.

Calculate topsoil for multiple lawn or garden zones, then split a soil mix and compare custom bag and bulk purchase costs.

Convert roof pitch between x:12 ratio, degrees, and percent slope, then calculate rise, pitch multiplier, and straight rafter line length.

Calculate whole drywall panels from room dimensions or known area, including ceiling, openings, panel size, and extra material.

Estimate cattle calving or service dates with a visible inclusive gestation assumption, elapsed-day receipt, planning buffer, and local schedule.

Estimate asphalt tons and volume for multiple paved areas and cutouts using editable density, allowance, and optional material price.

Estimate a PC PSU wattage class while keeping component load, headroom, manufacturer system floors, and source assumptions separate.

Estimate paver pieces, mixed pattern sets, border courses, whole packages, base, bedding, and optional package cost.

Calculate the volume of nine common solids with mixed length units, formulas, and cubic-unit, liter, and gallon conversions.

Find the GCF, GCD, or HCF of 2–20 integers and inspect every Euclidean remainder and multi-number merge step.

Find the exact LCM of 2–15 positive integers and list the first 1–100 shared positive multiples with visible fold steps.

Divide whole numbers with a place-aligned quotient, remainder, exact invariant, and divide–multiply–subtract–bring-down transcript.

Estimate wall paint for one rectangular room using explicit openings, coats, product-label coverage, and optional container size.

Generate a deterministic filled or outlined block circle with exact block counts, stacks of 64, and a row-by-row build guide.

Count posts, spans and nominal rail pieces for measured connected runs, with an explicit shared-corner and gate-post audit.

Turn length, width and depth, or a known area and depth, into cubic yards; add differently sized sections and see each row and the total.

Estimate gross activity calories from weight, time and a cited 2024 Adult Compendium MET value, with an above-rest figure and the formula.

Solve a general triangle from three known sides or angles, with both SSA solutions compared, area, perimeter and clear no-solution reasons.

Estimate a fixed-rate home equity loan's monthly payment and total interest with a cent-by-cent schedule, plus an optional check against your own CLTV limit.

Estimate US buyer closing costs with a rough 2%–5% range or your own Loan Estimate fees, and see cash to close with deposit, lender and seller credits on separate lines.

Enter or paste up to 12 categories and values, make a pie or doughnut chart with percentages that add to 100%, and download SVG or PNG.

Convert gross hourly pay to annual salary or annual salary to hourly pay using explicit paid hours and weeks, with weekly and monthly estimates.

Add sales tax at a rate you know, back tax out of an inclusive total, or total line items you mark as taxable, to the cent.

Add or remove UK VAT at 20%, 5% or 0% and see the net price, the VAT and the gross price, or total invoice lines per rate.

Add or remove Australia's 10% GST: the GST-exclusive price, the GST (1/11 of an inclusive price) and the GST-inclusive price.

Add or remove GST/HST, PST or QST for any province or territory: the price before tax, each tax and the total.

Estimate a child's rough adult height from both biological parents' heights with the AAP parent-height method, the equation and a ±4-inch range.

Estimate an exercise-specific one rep max from a 1–10 rep set, compare Epley and Brzycki, and see a clearly labeled percentage load table.

Calculate molarity, solute mass, or final solution volume with explicit units and formula steps.

Balance neutral molecular equations with exact whole-number coefficients, atom checks, and real conservation steps.

Add lumber rows, quantities, and prices per board foot, with a separate comparison of billing and measured dimensions.

Estimate rectangular, round, oval, or segmented pool water volume in gallons, liters, and cubic meters.

Convert numbers and Roman numerals both ways, check modern notation, convert dates, or process up to 100 mixed lines.

Calculate Wh from watts and time or volts and amp-hours, then estimate and compare battery runtime with visible assumptions.

Find a midpoint or missing endpoint with your own coordinates, worked formula steps and a matching graph.

Find exact slope, rise and run from two points, paste coordinate pairs, compare lines, and inspect an equal-scale graph.

Calculate cone volume from radius or diameter and perpendicular height, with exact pi, a decimal answer, cubic units, and substituted steps.

Calculate cylinder volume from radius or diameter and height, see base-area and substituted steps, then check an exact pi or decimal answer.

Calculate mean, sum, count and median, plan the average needed for a target, or combine group averages correctly using each group count.

Grade one test or paste up to 100 anonymous scores; see the exact percentage, the rounded one, and how your own cutoff treats each.

Calculate weighted and unweighted high school GPA, lock the baseline, and compare up to three grade changes without overwriting it.

Solve one-line percent equations, compare percent change with percentage points, or process up to 100 mixed questions.

Find a date before or after today, count calendar days or weekdays, and copy the date with its calculation details.

Compare up to 50 dates against one baseline or previous milestones, calculate working-day gaps, and batch add or subtract offsets.

See 52 full weeks plus the remaining day or days, decimal weeks, and the separate 52-or-53 ISO week-number answer for any year.

See the dates for all 12 zodiac signs and look up a birthday's sign, with the exact change time on cusp days in US time zones.

Get the 86,400-second answer, convert any number of days, or split seconds into full days, hours, minutes, and seconds.

Add rectangular room areas, paste feet and inches, and copy square-foot and square-meter totals.

Estimate concrete blocks with opening deductions, actual-versus-nominal CMU sizes, mortar joints, waste, and visible rounding.

Calculate concrete volume for up to 25 mixed rectangular, cylindrical, or annular sections with custom waste, bag yield, and ready-mix rounding.

Calculate a tip, split the bill to the cent, and copy a USD breakdown. Optional before-tax tipping.

Count US bills and coins by denomination with exact subtotals, total pieces, a nonzero breakdown, and a copy-ready cash total.

Read, trace, or print a multiplication chart from 1–12 or 1–20, with a product-free Blank mode and full keyboard operation.

Use the complete 64-codon Standard Code chart in RNA or DNA notation, with exact codon and amino-acid lookup.

Look up NIST-sourced neutral electron configurations from hydrogen through uranium, with condensed and full notation plus shell totals.

Interactive periodic table with IUPAC 2024 atomic weights and electron configurations; search, practice with hidden names, or print a blank sheet.

Convert a terminating or repeating decimal into a simplified fraction and mixed number with exact steps.

Simplify or scale a two- or three-term ratio, solve one missing proportion value, or split a total into shares.

Calculate CD interest and maturity value, compare three APYs, or test an exact early-withdrawal penalty and reinvestment break-even.

Calculate annualized growth from start, end and years or months, then copy an Excel RRI formula using annual periods.

Use the NWS wind-chill formula within its valid range, with one-decimal and whole-degree results plus model safety limits.

Find a missing side of a right triangle and see the substituted a² + b² = c² steps, square values, and labeled diagram.

Calculate a circle's area from its radius, diameter, or circumference. See the exact π form, decimal result, and related circle measurements.

Convert a circle equation between general and standard form, then see the center, radius, coefficients, and substitution steps.

Add, subtract, multiply, or divide mixed numbers with exact improper fractions, reduced answers, and explicit negative-sign parsing.

Compare circular pizza size and price by area, then find low-price combinations that meet a target area within a budget.

Audit alternating IN and OUT records, total completed work, and project clock-out time from an open IN and remaining unpaid break.

Calculate time between clock times, subtract breaks, total multiple intervals, or add and subtract days, hours, minutes, and seconds.

Estimate cubic yards and tons for up to three gravel areas, add waste or compaction, and optionally compare bulk and bag pricing.

Estimate deck boards, linear feet, fasteners, and optional cost using actual board width, gap, stock length, waste, and a separate 45-degree allowance.

Calculate a sale price or reverse the discount, then compare a multi-item cart with item discounts, an order coupon, tax, and both coupon orders.

Round an exact decimal by place and compare six methods side by side, including explicit .5 tie and negative-number direction rules.

Calculate a complete two-event probability table by choosing independent, mutually exclusive, or known-intersection mode with legal-bound checks.

Use a full positive and negative standard-normal table, highlight the exact row and column, or reverse a probability to z with adjacent-cell interpolation.

Calculate a z-score from a raw value, supplied reference mean and SD, with optional clearly qualified normal-model areas and local copy/export.

Evaluate bounded scientific expressions with DEG/RAD trig, powers, roots, logs, Ans, editable errors, and a private 20-entry in-tab history.

Simplify bounded single-variable algebra and constant complex expressions with exact steps, domain-safe stops, and private browser-only processing.

Decode or exactly encode 3-, 4-, 5-, and 6-band axial resistor colors with tolerance bounds, TCR, engineering notation, and reproducible links.

Calculate running pace, finish time, distance, speed, and reconciled equal or negative splits with exact mile and kilometer conversion.

Convert up to 100 decimal, E-notation, or ×10 values exactly, compare significant figures with fixed decimal places, and copy spreadsheet rows.

Calculate one logarithm or up to 100 values for a fixed valid real base, with change-of-base substitutions, display-precision checks, and TSV copy.

Calculate exact integer powers, digit counts and scientific notation, or check the real-number domain of negative bases with rational exponents.

Solve cost, impressions, or CPM from any two values, then audit up to 20 campaigns for true blended CPM and average-CPM bias.

Calculate simple interest by term or exact dates, compare fixed 360/365/366-day denominators, and export a monthly accrual schedule.

Find the principal square root, distinguish x²=n solutions, check your own estimate, and follow exact-comparison bisection intervals.

Calculate whole tile cartons from square footage, tile size or printed carton coverage, with allowance and carton-rounding overage kept separate.

Estimate DC voltage loss, percent drop, and load voltage from copper AWG, current, and one-way length with visible round-trip resistance math.

Calculate area fill from actual conduit inside diameter and mixed cable outside diameters, with an auditable same-unit trail and optional user-entered maximum.

Multiply two 1×1 to 6×6 matrices with exact fractions, bounded decimal results, and row-by-column steps.

Solve 2×2 or 3×3 linear systems with exact fractions, elimination steps, equation checks, and local TXT export.

Calculate rectangular sand volume, approximate short tons and whole bags, then compare your supplier's bag and bulk terms including minimum billing and delivery.

Convert hex and decimal exactly up to 64 bits, compare signed and unsigned readings, and preview width changes before losing high digits.

Explore the unit circle with exact common-angle coordinates, sin, cos and tan, degree and radian inputs, and copyable values.

Solve a quadratic equation with real or complex roots, substituted working and a graph. Paste an equation or enter its coefficients.

Convert radians and degrees in either direction, enter exact π fractions, and check decimal values, turns, and the coterminal angle position.

Calculate molecular weight and molar mass from a chemical formula, with atom counts, mass percentages, nested groups, hydrates, and clear input errors.

Compare three monthly extra-principal plans or solve the payment needed for a target payoff month on a current fixed-rate mortgage.

Estimate a fixed-rate card payoff with a cent-reconciled monthly schedule, or find the smallest whole-cent payment for a target number of months.

Model distributions, DRIP fractional shares, contributions, and ending value from your own per-share assumptions.

Estimate regular, overtime, and gross pay for one or two separate workweeks with zero-hour-safe receipts and a local CSV export.

Estimate 2026 federal bonus withholding with separate 22% and 37% slices, Social Security and Medicare thresholds, and explicit state/local limits.

Compare actual-calendar-day and fixed-30-day estimates for one partial rent month, with inclusive dates, exact rounding, and a local text receipt.

Create 1–20 reproducible custom 5×5 bingo cards from your own items and print the current browser-local batch.

Count instantly with named tallies, local saving, and a clear soft goal or hard cap that never exceeds its target.

Estimate PC hip-fire sensitivity from disclosed community yaw assumptions, with exact and rounded settings, modelled cm/360, and a source receipt.

Draw family-safe charades prompts to act out by category and difficulty, with no repeats in a session and an optional timed round with score.

Enter two names for a repeatable, just-for-fun score from 0 to 100. Swapping names keeps the score, and names never leave your browser.

Pick 1 to 12 real animals from a cited 48-species list, filter by group, and see each scientific name and ITIS record.

Draw 1 to 10 UN member countries from a visible World or regional pool, avoid repeats, and export a dated local CSV.

Pick a random A–Z letter, vowel, consonant, or custom letter. Exclude letters and see the exact pool on a matching wheel.

Generate 1 to 128 unique everyday objects from a versioned local dataset, with category filters and a clear generation receipt.

Count local calendar sleeps until Christmas morning, decide whether tonight counts, and print a dated bedtime checklist.

Set up to three named browser alarms with live countdowns, progressive volume, five-minute snooze, local recovery, and explicit browser reliability limits.

Start a 5-minute timer in one tap, add optional 1-minute and 30-second alerts, and restore accurate time after a background tab or reload.

Start a 10-minute countdown in one tap, add optional 5- and 1-minute alerts, and restore accurate time after a background tab or reload.

Start a 15-minute countdown in one tap, add optional checkpoint alerts, and recover accurate time after a background tab or reload.

Start a 20-minute countdown in one tap, add optional halfway, 5-minute, and final-minute alerts, and restore accurate time after a reload.

Flip for heads or tails, use fixed best-of-3 or best-of-5 rounds, and copy the result with your named choices and every toss.

Spin for an instant random YES or NO answer, add MAYBE, spin again, and see current-session counts without sign-up.

Set an integer range, step and exclusions, then spin a browser-local number wheel with repeat or draw-each-once modes.

Spin a browser-local wheel to pick from up to 100 names or options, remove winners, save lists, and copy the draw history.

Guess 10 flags from a curated 50-country set, learn a visual cue, then retry only the flags you missed.

Test five valid rounds using a keyboard, mouse, or touch. Early responses and interrupted rounds do not count toward your result.

Run a private 1, 5, or 10 second clicks-per-second test with primary pointer presses and a clearly timed result.

Test Left, Right and stereo audio with short low-gain tones, an immediate Stop button, and a controlled 100 Hz–10 kHz sweep.

Measure browser-delivered FPS, median and p95 frame intervals, and delayed callbacks with a short visible-tab test and clear hardware limits.

Paste names and split them into size-balanced random groups by group count or maximum group size, then reshuffle or copy the result.

Generate family-friendly drawing words by category and difficulty, avoid repeats during the session, and run a separate 30, 60, or 90-second timer.

Play a Hangman game with 360 local prompts, category and difficulty choices, or a private same-device custom word.

Combine two names into up to 12 couple, friendship, or fandom ship-name ideas using both directions, shared-letter overlaps, and adjustable cuts.

Find A4, Letter, Legal, ISO A and ISO B paper dimensions in mm, inches or cm, change orientation, and copy a selected size.

Convert supported SVG markup or a local SVG file to an exact-size PNG with strict safety checks, transparent or solid output, and no upload.

Draw or type a signature image locally, then download transparent PNG or a path-only SVG for a drawing without uploading your work.

Create one-page Letter or A4 square graph paper with exact digital geometry, a fit and crop receipt, and optional measured print compensation.

Compare six common nominal US bed sizes in inches and centimeters, including width and length differences and a product-variation reminder.

Convert a compatible MP4 to MP3 on your device, with bitrate, sample-rate, channel and trim controls before download.

Original phone wallpapers in cute, pink, aesthetic and dark styles. Pick your phone and each download comes out at its exact resolution, for iPhone, Galaxy and Pixel.

Free matching wallpaper pairs for iPhone Duo: an outer-screen and an inner-screen image that join into one scene when you open the phone. No text on them.

Free Merry Christmas pictures with the greeting already on them: classic, religious, funny and family. Save one, text it or post it on Facebook.

Free Happy Holidays and Season’s Greetings pictures for coworkers, neighbors and friends. Save one, text it or post it on Facebook.

Free Christmas Eve pictures with the greeting already on them: firelight, candles, Santa on his way and a silent, holy night. Save one or text it.

Free Happy New Year pictures full of gold, fireworks and midnight skies, with or without 2027 on them. Save one, text it or post it on Facebook.

80 free Christmas coloring sheets to print on US Letter: Santa, trees, gingerbread, snowmen and more. Easy and medium pages, no watermark, no sign-up.

Free Happy Thanksgiving pictures with wishes and blessings already on them, for family, friends and coworkers. Save one, text it or post it on Facebook.

Free Hanukkah images with warm wishes already on them: glowing menorahs, dreidels and latkes. Save one, text it or post it on Facebook.

Free Good Morning pictures with the greeting on them, plus Happy Monday through Happy Sunday. Today’s day comes first. Text or post them.

Free Happy Monday pictures to start the week: Good Morning wishes, a funny Monday cat, coffee and Monday Blessings. Save one, text it or post it.

Free Happy Tuesday pictures with the greeting already on them: flowers, coffee, cute animals and Tuesday Blessings. Save one, text it or post it.

Free Happy Wednesday and Hump Day pictures: a smiling camel, coffee, flowers and Wednesday Blessings. Save one, text it or post it on Facebook.

Free Happy Thursday pictures for that almost-Friday feeling: flowers, coffee, cute animals and Thursday Blessings. Save one, text it or post it.

Free Happy Friday pictures: TGIF, funny ones, coffee, cute animals and Friday Blessings, with the greeting already on them. Save one or text it.

Free Happy Saturday pictures for slow mornings and the weekend: coffee, cute animals, flowers and Saturday Blessings. Save one, text it or post it.

Free Happy Sunday and Sunday Blessings pictures: flowers, family, peaceful mornings and a short Bible verse. Save one, text it or post it on Facebook.

Free Good Night and Sweet Dreams pictures: moon and stars, sleepy animals and love notes. Text or post them.

Free Good Afternoon pictures with sunshine, flowers and a coffee or tea break. Text or post them.

Free Happy Birthday pictures with the greeting on them for a sister, brother, friend or the men in your life, plus belated wishes. Text or post them.

Estimate the presumed ovulation day, six-day fertile window and next period for a regular cycle, with an eligibility check first. Not birth control.

Estimate adult body-fat percentage from tape measurements with a named historical circumference equation, clear measurement steps, and visible limits.

Compare bust, waist, high-hip and hip measurements with a named nine-category apparel model, including transparent overlap and no-match results.

Calculate mL from mg only with a label concentration or material density, using separate modes, visible arithmetic, and no medicine or water preset.

See all 12 months of 2027 with the US federal holidays and their observed days (OPM), workdays per month and long weekends, then print a free Letter PDF.

See all 12 months of 2027 with the bank holidays of England and Wales, Scotland and Northern Ireland from GOV.UK, ISO week numbers and working days, then print a free A4 PDF.

See all 12 months of 2027 with the stat holidays of every province and territory, working days and long weekends, then print a free Letter PDF.

See all 12 months of 2027 with the public holidays of every state and territory, working days and long weekends, then print a free A4 PDF.

See all 12 months of 2027 with the 17 Hong Kong public holidays and the 15 statutory holidays, leave plans and lunar dates, then print a free A4 PDF.

See all 12 months of 2027 with the regular holidays and special non-working days of Proclamation No. 1427, long weekends and leave days, then print a free Letter PDF.

See all 12 months of 2027 with Malaysia's public holidays (cuti umum), each state's own days, weekend and replacement days, long weekends, then print a free A4 PDF.

See all 12 months of 2027 with Singapore's 11 public holidays and Monday 8 February, long weekends, leave plans and MOE school holidays, then print a free A4 PDF.